docs: def set_tr_te(nifti_image, repetition_time, echo_time):
      """
      Set the tr and te in the nifti headers
  
      :param echo_time: echo time
      :param repetition_time: repetition time
      :param nifti_image: nifti image to set the info to
      """
      # set the repetition time in pixdim
      nifti_image.header.structarr['pixdim'][4] = repetition_time / 1000.0
  
      # set tr and te in db_name field
      nifti_image.header.structarr['db_name'] = '?TR:%.3f TE:%d' % (repetition_time, echo_time)
  
      return nifti_image